Alaska earthquakes

M2.6 earthquake 185 km SSE of Unalaska, Alaska

A magnitude 2.6 earthquake struck 185 km SSE of Unalaska, Alaska on Tue, Sep 19, 2023, 3:18 PM AKDT (23:18 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.4 207 km SE of Nikolski, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.6 (ml), micro
Local time
UTC
2023-09-19 23:18:56 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
52.257° N, 165.836° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.3 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
276°, poorly surrounded by stations
Stations used
15

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.5129 km S of Unalaska, Alaska · 1104 days ago · 10 km deep · 75 km away
  2. 3.4207 km SE of Nikolski, Alaska · 1101 days ago · 10 km deep · 50 km away
  3. 3.2196 km ESE of Nikolski, Alaska · 1101 days ago · 10 km deep · 44 km away
  4. 2.998 km SE of Unalaska, Alaska · 1101 days ago · 35 km deep · 100 km away
  5. 2.0118 km S of Unalaska, Alaska · 1100 days ago · 1 km deep · 89 km away
  6. 1.9125 km S of Unalaska, Alaska · 1100 days ago · 1 km deep · 82 km away
  7. 1.9131 km S of Unalaska, Alaska · 1100 days ago · 9 km deep · 72 km away
  8. 2.3134 km ESE of Nikolski, Alaska · 1093 days ago · 13 km deep · 85 km away
  9. 2.6142 km S of Unalaska, Alaska · 1089 days ago · 10 km deep · 64 km away
  10. 3.0135 km S of Unalaska, Alaska · 1086 days ago · 10 km deep · 73 km away
  11. 2.0135 km S of Unalaska, Alaska · 1083 days ago · 8 km deep · 70 km away
  12. 2.8127 km S of Unalaska, Alaska · 1075 days ago · 10 km deep · 83 km away
  13. 2.6150 km ESE of Nikolski, Alaska · 1070 days ago · 10 km deep · 68 km away
  14. 2.7141 km S of Unalaska, Alaska · 1069 days ago · 10 km deep · 67 km away
  15. 2.1162 km ESE of Nikolski, Alaska · 1066 days ago · 22 km deep · 56 km away
  16. 2.1127 km S of Unalaska, Alaska · 1065 days ago · 10 km deep · 76 km away
  17. 2.8213 km SSE of Unalaska, Alaska · 1064 days ago · 10 km deep · 28 km away
  18. 1.8112 km S of Unalaska, Alaska · 1062 days ago · 11 km deep · 97 km away
  19. 3.3208 km ESE of Nikolski, Alaska · 1047 days ago · 10 km deep · 43 km away

Before

  1. 2.9south of the Aleutian Islands · 1106 days ago · 10 km deep · 10 km away
  2. 2.9190 km SSE of Akutan, Alaska · 1107 days ago · 10 km deep · 94 km away
  3. 3.0180 km SE of Nikolski, Alaska · 1110 days ago · 10 km deep · 96 km away
  4. 1.9Fox Islands, Aleutian Islands, Alaska · 1112 days ago · 19 km deep · 69 km away
  5. 2.0125 km ESE of Nikolski, Alaska · 1118 days ago · 19 km deep · 97 km away
  6. 1.9118 km S of Unalaska, Alaska · 1118 days ago · 15 km deep · 91 km away
  7. 2.2132 km ESE of Nikolski, Alaska · 1118 days ago · 10 km deep · 88 km away
  8. 2.3138 km ESE of Nikolski, Alaska · 1119 days ago · 13 km deep · 82 km away
  9. 1.9120 km SSE of Unalaska, Alaska · 1120 days ago · 24 km deep · 75 km away
  10. 1.8Fox Islands, Aleutian Islands, Alaska · 1127 days ago · 10 km deep · 93 km away
  11. 1.9115 km SSE of Unalaska, Alaska · 1128 days ago · 7 km deep · 82 km away
  12. 2.9183 km SSE of Akutan, Alaska · 1130 days ago · 10 km deep · 94 km away
  13. 2.3146 km ESE of Nikolski, Alaska · 1132 days ago · 25 km deep · 71 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lcck (also filed as ak023c1olvja). Read Tue, Sep 29, 2026, 2:14 AM UTC.